They come off one by one. You can use them for everyday stick-on earrings, or attach them to your hair for weddings, etc. When using them for nail art, apply a top coat over them. 15 colors, 900 pieces total Each color has: 3mm x 20 pieces 4mm x 20 pieces 5mm x 20 pieces Opened for photography. The position of the stickers may have shifted during shipping. Combined shipping is welcome. If combined, we will discount 100 yen per item.